Stalemate in battle.
A stalemate in battle occurs when one of the opponents avoids direct contact between troops and does not inflict damage on the opponent.
If the attacking player creates a stalemate, then they are considered to have lost the battle and must retreat.
If the defending player creates a stalemate, then they must choose to either offer a draw or retreat. Upon receiving the draw offer, the attacking player must either accept the draw or retreat.
A siege with a broken catapult does not count as a stalemate; it is a loss for the attacker, and they must retreat.
In tournaments with a single-elimination system, after a draw, the players return to the situation that existed before the start of the game and begin the next generation with the same number of restarts.
Specifically regarding the game: in my opinion, such moments only enhance the gameplay. Skillful use of terrain – utilizing everything possible. And yes, it would be much more interesting with more complex terrain.
And why is this suddenly being called a bug? Why should two-hex units be able to reach into any hole? It's not uncommon for there to be a mountain in the middle of the field with a one-hex hole in it. Let's call it a bug because two-cell units should be running in circles